8-70
8
EBU35911
Troubleshooting charts
Starting problems or poor engine performance
Check the f
u
el le
v
el in
the f
u
el tank.
1. Fuel
There is eno
u
gh f
u
el.
There is no f
u
el.
Check the
b
attery.
S
u
pply f
u
el.
The engine does not start.
Check the
b
attery.
Operate the electric starter.
4. Compression
There is compression.
There is no compression.
The engine does not start.
Ha
v
e a Yamaha dealer check the
v
ehicle.
Ha
v
e a Yamaha dealer check the
v
ehicle.
Remo
v
e the spark pl
u
gs
and check the electrodes.
3. I
g
nition
W
ipe off
w
ith a dry cloth and correct the
spark pl
u
g gaps, or replace the spark pl
u
gs.
Ha
v
e a Yamaha dealer check the
v
ehicle.
The engine does not start.
Check the compression.
Operate the electric starter.
2. Battery
The engine t
u
rns o
v
er
q
u
ickly.
The engine t
u
rns o
v
er
slo
w
ly.
The
b
attery is good.
Dry
W
et
Operate the electric starter.
Check the
b
attery lead connections,
and ha
v
e a Yamaha dealer charge
the
b
attery if necessary.
The engine does not start.
Check the ignition.
UB5H7AE0.book Page 70 Wednesday, July 4, 2018 1:37 PM
